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From what I have read so far, closed cell seems better than open cell. Closed cell has a much greater R-value and is a better vapor retarder. I’d appreciate hearing what others have to say.
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Replies
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Larry: Foam in place polyurethane foam is closed cell and has a R rating range of 6.2 to 6.8.
Source: Foam Assn: 1 800 523-6154. John Fuhrman
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From what I have read so far, closed cell seems better than open cell. Closed cell has a much greater R-value and is a better vapor retarder. I'd appreciate hearing what others have to say.